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AssigneeNippon Mitsubishi Oil Corporation
InventorsTuyoshi Asano, Noboru Takaesu, Yoshinori Nishikitani, Masaki Minami
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An ultraviolet absorbing material prepared by reacting (a) an aminosilane compound of general formula (1) or a derivative thereof wherein R1 is C1-C10 alkylene or —(CH2)m—NH— (wherein m is an integer of 1 to 4); R23 s are each independently hydrogen, hydroxyl, halogeno, C1-C10 alkyl or C1-C10 alkoxy, with the proviso that at least one of R2 is C1-C10 alkoxy; and n is an integer of 0 or above with (b) an ultraviolet absorber having a carboxyl group in the molecule in such a way as to form an amide linkage resulting from the above aminosilane compound or derivative thereof. This material can form an ultraviolet absorbing layer and is favorably applicable to ultraviolet-absorbing glass (ultraviolet absorbing plate), optical devices and light modulators.
An ultraviolet absorbing plate produced by providing on a substrate an ultraviolet absorbing layer formed from an ultraviolet absorbing material having an amide bond and an Si—O bond, wherein said ultraviolet absorbing material comprises a reaction product of (a) an aminosilane compound of formula (1) or a hydrolysate thereof with (b) an ultraviolet absorber having in its molecules a carboxyl group so as to form an amide bond derived from the aminosilane compound or a hydrolysate thereof,
An ultraviolet absorbing material comprising a reaction product of (a) an aminosilane compound of formula (I) or a hydrolysate thereof with (b) an ultraviolet absorber having in its molecules a carboxyl group so as to form an amide bond derived from the aminosilane compound or a hydrolysate thereof,
Dependencies are inferred from the claim text.